136 ANNUAL RKPOKT OF THE Off. Doc. 



EEPOirr OF THE static veterinarian 



Hanifsbui-g, Pa., Janmvnj 1 , 1911. 

 Hon. N. B. Ci-ilcli field, Seeretar}^ of Agriculture. 



Dear Sir: — I have the honor to submit the following rei)ort upon 

 the work of the State \'eterinarian, as well as upon the work of the 

 office of the State Livestock Sanitary Board for the year 1910. 



During this year the State Livestock Sanitary Board has not had 

 to cope wi(h any extensive outbreak of a highly contagious disease. 

 The work has i)rinci]>ally been along the line of enforcing the rules 

 and regulations previously adopted by the Board. My exjterience 

 during the year has led me to believe that the breeders, dairymen 

 and farmers, are becoming uiore acquainted with the laws pertaining 

 to the repression of infectious diseases and are more Avilling to co- 

 oi)erate with the State livestock Sanitary Board, in the uieasures 

 adopted by them. 



Reports from the agents of the ]\Ieat Hygiene Service show that 

 the butchers are beginning to realize the importance of slaughtering 

 animals under sanitary conditions. It has only been necessary to 

 call their attention to the defects connected with the construction 

 ol" their slaughter houses, method of dressing the carcasses, disposal 

 of ofl'al, etc., and they would wilJingly correct the same. 



The work of the experimental farm has progressed satisfactorily. 

 The production of a serum for the itrevention of hog cholera has 

 been one of the main features. Every outbreak of hog cholera that 

 has been reported to the State Livestock Sanitary Board has been 

 thoroughly investigated and the non-infected animals vaccinated. 

 In this Avay thousands of animals liave been saved. It is almost 

 impossible to measure their value in dollars and cents. In one herd 

 where a number of animals had died of hog cholera, the remaining 

 number, over 800, Avere vaccinated with gi-atifying results. Another 

 important part of the work at the farm was the continuation of 

 the experiments with the view of producing a practical method of 

 immunizing young animals against tuberculosis. It is proposed 

 during the next year to issue an elaborate rei)ort upon this subject, 

 the experiments of which have covered a period of more than eight 

 years. After it was discovered that it was possible to produce an 

 immunity in young aniuials, the results of which were published 

 by Dr. Leonard Pearson and Dr. S. PI. Gilliland, some years ago, it 

 remained then to determine the size and number of doses to produce 

 a serviceable degree of immunity, the duration of such immunity, 

 the effect upon .the animal as it matured, and if it would be possible 

 to rear a tuberculosis free herd from, a tuberculous herd. 



The State Livestock Sanitary Board and the experimental work 

 of the farm suffered a great loss in tlie resignation of Dr. E. S. 

 Deubler, which took ])lace in November on account of ill health. 

 Dr. Deubler had been in charge of the work of the farm for over three 

 years and was fauiiliar Avith every ]>hase of the ex])eriments in pro- 

 gress and made great sacrifices to see that the same Avere ])roperIy 

 carried out. 



